No.
I truly believe that voice/Siri is a niche feature that hardly anyone uses and will remain so for as long as it exists. Not once have I seen or heard anyone use it. It's an incredibly slow and inefficient way to get things done. Touch and typing is quicker, easier and more reliable, and is possible 100% of the time, whereas Siri is possible only when no-one is near you and where it is quiet.
Handoff could become useful one day, but in its present state, it's far too buggy and slow. Again, though, it's terribly niche. How many people really need to urgently switch from their iPhone to their Mac? Emails and documents get saved automatically anyway; it's not like you save any time. If everything syncs via iCloud, there is no need for the clunkiness of Handoff.
It's OK to believe. But belief/faith exists in the absence of evidence, and it's often necessary to ignore evidence in order to maintain belief. (I'll skip the examples, as this post would then belong in Religion/Politics.)
I have a contrary belief. I believe that Apple Watch is
intended to be a bridge product on the road to keyboard-free computing. If we are to have self-driving cars, we must have accurate voice control. If we are to be liberated from desktops and laptops, we must have accurate voice input. Keyboarding is impractical on a 42mm touchscreen, just as it's impractical when driving a car, suturing a surgical patient, or pulling a casserole out of the oven. In order to have that world, Siri and her siblings will have to earn our trust. Trust that can't be earned if we never interact with them.
Opinion: We are never going to have humanoid robots a la Isaac Asimov, despite Honda's ASIMO (where's the "V," Honda?). We are going to have disembodied voice interaction with a world filled with special-purpose robotics. Siri, Cortana, HAL, Star Trek's "Computer," or Samantha in
Her... Soon. Very, very soon. Most assuredly, with enough safeguards that we won't be ejected from pod bay airlocks or subjugated to the will of the Matrix. To have this kind of "anywhere access" to our "assistant," all we need is positive identity verification. Enter Touch ID and similar user-supplied keys.
We'll stay with Apple, Amazon, Microsoft, Google - whoever manages our personal data - because the uncertainties related to "firing" one "upstairs maid," "valet" or "personal assistant" and "training" the next will be enough to deter casual switching (it's the same reason most of us keep going back to the same dentist). There may be more money riding on the current TV ads for Siri, Cortana, and Google than most of us can possibly imagine.
I've been a fast touch-typist since around 1970, so keyboard input is just fine by me. But I also suspect that for every adept touch typist, there may be dozens of hunt-and-peck typists. Voice input is not only for the vision-impaired, but for the keyboard-impaired as well. One of the reasons touchscreen devices are so popular is that they are less dependent upon a keyboard. And damn, why
wouldn't I want to stand around and tell Siri to do something, rather than sit in front of a real keyboard or trying to "touch" on a virtual keyboard that lacks tactile feedback? Should I wish for an iPad with tactile feedback, or skip it altogether in favor of, "Hey Siri?"
I was showing my Watch to my 80-year-old aunt, who has yet to master leaving voice mail messages, no less boot a PC. I started demonstrating voice input for Messages, and let it run while our conversation continued (she didn't realize the "tape" was still rolling). Every word she uttered was accurately recorded, including the "Oh my god!!!!" she exclaimed when she realized it was her words scrolling by on that little display. Only the punctuation was lacking. None of the "training" required in the days of Dragon Naturally Speaking and its predecessors. No, "Auntie, please speak slowly and distinctly."
Is it perfect? Not yet, but it's getting better every day. I've had remarkably good experiences with voice input. Others will undoubtedly have contrary experiences - that's the nature of any developing technology. Certainly, once "once burned, twice cautious..." I've yet to have a car's hands-free system successfully access my phone's contact list ("Call Mom" "Did you mean, Call Don?"). But Siri has proven to be far better. I'm looking forward to having a car with CarPlay. For me, I see not only light, but green hills and blue sky at the end of the tunnel.